[alsa-devel] Microphone detected, but no output for all ASUS G751xx with ALC668 chipset

[Håvard]

Sorry about that, I forgot to enable a kernel config...

-Håvard

Den tir. 11. sep. 2018 kl. 21:20 skrev Connor McAdams <conmanx360 at gmail.com
>:

> When it's bound as a stub, it shouldn't show up in alsamixer controls.
> You can check what module is loaded by doing lspci -v . It should say
> kernel driver in use: pci-stub. Also, did you run the vfio-bind script
> before trying it?
>
> On Tue, Sep 11, 2018 at 3:18 PM, Håvard <hovardslill at gmail.com> wrote:
> > Thank you for the offer!
> >
> > I run gentoo, but your github guide is very useful. I can't seem to bind
> my
> > audio driver to a pci-stud. Is the Sound card still supposed to function
> as
> > normal when I (think I) have bound it to a stud.
> >
> > -Håvard
> >
> > Den tir. 11. sep. 2018 kl. 20:26 skrev Connor McAdams
> > <conmanx360 at gmail.com>:
> >>
> >> One thing you could try, is using the program I used to reverse
> >> engineer the Sound Blaster Z series of cards, QemuHDADump. If your
> >> processor supports pci-passthrough with a virtual machine, you could
> >> run a Windows virtual machine with the sound card in it and capture
> >> the commands. I'd be willing to look through the dumps to see if there
> >> are any special verbs or anything.
> >>
> >> You can find the program here:
> https://github.com/Conmanx360/QemuHDADump
> >>
> >> Let me know.
> >>
> >> On Tue, Sep 11, 2018 at 2:15 PM, Håvard <hovardslill at gmail.com> wrote:
> >> > Sorry, my gmail didn't update so I wrote my response before I read
> your
> >> > last one.
> >> >
> >> > It is a separate mic port as the G751JT doesn't have any headset
> >> > multijacks.
> >> >
> >> > I'll try and dig around in the kernel! Thanks for the tip!
> >> >
> >> > -Håvard
> >> >
> >> > Den tir. 11. sep. 2018 kl. 20:09 skrev Håvard <hovardslill at gmail.com
> >:
> >> >
> >> >> Thank you for taking your time and trying to help! :)
> >> >>
> >> >> Do you know where I can ask around for more help on the issue? I
> don't
> >> >> want to give up yet.
> >> >>
> >> >> -Håvard
> >> >>
> >> >> Den tir. 11. sep. 2018 kl. 20:02 skrev Takashi Iwai <tiwai at suse.de>:
> >> >>
> >> >>> On Tue, 11 Sep 2018 19:14:37 +0200,
> >> >>> Håvard wrote:
> >> >>> >
> >> >>> > Yes, microphone gets detected instantly and it automatically
> changes
> >> >>> > to
> >> >>> it
> >> >>> > in pavucontrol.
> >> >>>
> >> >>> Then it likely requires some additional initialization outside
> >> >>> HD-audio.  It's hard to know, as it's pretty much vendor-specific.
> >> >>> You can dig down the Windows, but I have no idea about Windows
> >> >>> implementation, so can't give any hints, unfortunately.
> >> >>>
> >> >>>
> >> >>> Takashi
> >> >>>
> >> >>> >
> >> >>> > Den tir. 11. sep. 2018 kl. 18:52 skrev Takashi Iwai <
> tiwai at suse.de>:
> >> >>> >
> >> >>> > > On Tue, 11 Sep 2018 18:40:23 +0200,
> >> >>> > > Håvard wrote:
> >> >>> > > >
> >> >>> > > > Thank you for replying!
> >> >>> > > >
> >> >>> > > > Enabling loopback in alsamixer:
> >> >>> > > > http://i.imgur.com/lNo6e7T.png
> >> >>> > > >
> >> >>> > > > And unmuting more and more things in "Mic Playback Volume" in
> >> >>> > > hdaanalyzer:
> >> >>> > > > http://i.imgur.com/H0HiOhy.png
> >> >>> > > > made white noise come from the headset. However it did not
> >> >>> > > > change or
> >> >>> > > react
> >> >>> > > > at all when I talked or even muted the microphone physically.
> >> >>> > > >
> >> >>> > > > I couldn't find "Mic Playback Switch" anywhere in either
> >> >>> > > > alsamixer
> >> >>> or
> >> >>> > > > hdaanalyzer.
> >> >>> > >
> >> >>> > > It's a mixer mute switch.
> >> >>> > >
> >> >>> > > > The microphone works perfectly fine under Windows, so I don't
> >> >>> > > > think
> >> >>> it is
> >> >>> > > > the mic pin.
> >> >>> > >
> >> >>> > > But the fact above indicates the possibility of the wrong pin,
> >> >>> > > too.
> >> >>> > >
> >> >>> > > Does the jack detection of the ext mic pin work?
> >> >>> > >
> >> >>> > >
> >> >>> > > Takashi
> >> >>> > >
> >> >>> > > >
> >> >>> > > > -Håvard
> >> >>> > > >
> >> >>> > > > Den man. 10. sep. 2018 kl. 22:39 skrev Takashi Iwai
> >> >>> > > > <tiwai at suse.de
> >> >>> >:
> >> >>> > > >
> >> >>> > > > > On Thu, 06 Sep 2018 20:44:30 +0200,
> >> >>> > > > > Håvard wrote:
> >> >>> > > > > >
> >> >>> > > > > > Additional relevant info:
> >> >>> > > > > >
> >> >>> > > > > > A similar issue was also discussed three years ago on Sun
> >> >>> > > > > > Jun
> >> >>> > > 17:15:54
> >> >>> > > > > CEST
> >> >>> > > > > > 2015 and was about his surround sound setup, but did not
> >> >>> > > > > > touch
> >> >>> on the
> >> >>> > > > > > external microphone problem:
> >> >>> > > > > >
> >> >>> > > > >
> >> >>> > >
> >> >>>
> >> >>>
> http://mailman.alsa-project.org/pipermail/alsa-devel/2015-June/093317.html
> >> >>> > > > > >
> >> >>> > > > > > alsa-info.sh:
> >> >>> > > > > >
> >> >>> > > > >
> >> >>> > >
> >> >>>
> >> >>>
> http://www.alsa-project.org/db/?f=1d8616ba5977308e03db6c3a86e36e9e9b38d6f0
> >> >>> > > > > >
> >> >>> > > > > > Graph of ALC668 chipset from hdaanalyzer:
> >> >>> > > > > > http://i.imgur.com/c08DNJW.png
> >> >>> > > > > >
> >> >>> > > > > > setting alsa-mode[1-8] does nothing to help the issue.
> >> >>> > > > > >
> >> >>> > > > > > There are several of similar bug reports around the web
> >> >>> experiencing
> >> >>> > > > > > similar issues, and on different distros.
> >> >>> > > > > >
> >> >>> > > > > > Microphone works perfectly in windows
> >> >>> > > > > >
> >> >>> > > > > > I have a ASUS ROG G751JT, but this problem seems to happen
> >> >>> > > > > > with
> >> >>> all
> >> >>> > > > > laptops
> >> >>> > > > > > under the G751 name.
> >> >>> > > > >
> >> >>> > > > > When you enable the loopback volume and switch, and
> >> >>> > > > > unmute/adjust
> >> >>> "Mic
> >> >>> > > > > Playback Volume", and "Mic Playback Switch", do you hear the
> >> >>> > > > > input
> >> >>> > > > > from the ext mic?  It's a route directly from NID 0x18 to
> the
> >> >>> mixer
> >> >>> > > > > NID 0x0b, then output mixer NID 0x0c, then outputs.  So this
> >> >>> > > > > can
> >> >>> be
> >> >>> > > > > used to verify the hardware routing.
> >> >>> > > > >
> >> >>> > > > > If you don't hear via this route, it means that the input
> from
> >> >>> the ext
> >> >>> > > > > mic pin itself is broken, and it implies that something
> >> >>> > > > > outside
> >> >>> > > > > HD-audio codec.
> >> >>> > > > >
> >> >>> > > > >
> >> >>> > > > > Takashi
> >> >>> > > > >
> >> >>> > > > [2  <text/html; UTF-8 (quoted-printable)>]
> >> >>> > > >
> >> >>> > >
> >> >>> > [2  <text/html; UTF-8 (quoted-printable)>]
> >> >>> >
> >> >>>
> >> >>
> >> > _______________________________________________
> >> > Alsa-devel mailing list
> >> > Alsa-devel at alsa-project.org
> >> > http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
>